Winter Weather Advisory: 2-4 Inches of Snow, Minor Ice Accumulation Possible

SNOW AND FREEZING DRIZZLE, GLAZING ON SNOW COVER LIKELY MONDAY NIGHT… TEMPERATURES FORECAST TO RISE GRADUALLY AND BE ABOVE FREEZING ABOUT 11 AM TUESDAY.

LAKE IL-DUPAGE-COOK-WILL-LAKE IN-PORTER-
INCLUDING THE CITIES OF…WAUKEGAN…WHEATON…CHICAGO…JOLIET…
GARY…VALPARAISO (INCLUDES ARLINGTON HEIGHTS)
304 AM CST MON DEC 20 2010

…WINTER WEATHER ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM CST TUESDAY…

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 4 PM THIS
AFTERNOON TO 9 AM CST TUESDAY.


* TIMING…SNOW WILL DEVELOP LATER THIS AFTERNOON AND CONTINUE
INTO THE EVENING BEFORE CHANGING TO FREEZING DRIZZLE LATE
TONIGHT. FREEZING DRIZZLE WILL THEN CHANGE TO DRIZZLE AS
TEMPERATURES RISE ABOVE FREEZING TUESDAY MORNING.

* ACCUMULATIONS…SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE
LIKELY…POSSIBLY FOLLOWED BY A MINOR GLAZING OF ICE FROM
FREEZING DRIZZLE…MAINLY ON ELEVATED AND UNTREATED SURFACES.

* IMPACTS…SNOW COVERED ROADWAYS AND REDUCED VISIBILITIES ARE
LIKELY DURING THE HEIGHT OF THE STORM LATER THIS AFTERNOON AND EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW…OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

++++++++++++++++++++++++

PREVIOUS ADVISORY FROM 10 PM …

AN AREA OF LOW PRESSURE IS EXPECTED TO DEVELOP ACROSS THE FRONT RANGE OF THE NORTHERN ROCKIES LATE TONIGHT…BEFORE MOVING ACROSS THE DAKOTAS ON MONDAY. AS THIS OCCURS…SNOW IS EXPECTED TO DEVELOP ACROSS MUCH OF NORTHWESTERN ILLINOIS LATE MONDAY AFTERNOON. THIS AREA OF SNOW WILL SPREAD EAST ACROSS NORTHEASTERN ILLINOIS AND NORTHWESTERN INDIANA BY MONDAY EVENING. PERIODS OF SNOW WILL CONTINUE THROUGH MONDAY EVENING. THEN…THE SNOW IS EXPECTED TO CHANGE OVER TO LIGHT FREEZING DRIZZLE AFTER MIDNIGHT ON MONDAY NIGHT AS WARMER AIR APPROACHES. THERE IS THE POTENTIAL FOR 1 TO 3 INCHES OF SNOW ACROSS THE AREA…ALONG WITH THE POTENTIAL FOR LIGHT ICE ACCUMULATIONS MONDAY NIGHT INTO TUESDAY. THE HIGHEST AMOUNTS OF SNOW SHOULD OCCUR ALONG AND NORTH OF INTERSTATE 80.

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT CST
/1 AM EST/ MONDAY NIGHT TO 9 AM CST /10 AM EST/ TUESDAY.

* TIMING…THE SNOW WILL BEGIN LATE MONDAY AFTERNOON AND
EVENING.
AFTER MIDNIGHT MONDAY NIGHT…THERE IS THE POTENTIAL
FOR AREAS OF FREEZING DRIZZLE.

* ACCUMULATIONS…SNOW ACCUMULATION WILL RANGE FROM 1 TO 3 INCHES.
THE HIGHEST AMOUNTS SHOULD BE ALONG AND NORTH OF INTERSTATE 80. IN ADDITION…THERE IS THE POTENTIAL FOR LIGHT ICE ACCUMULATIONS.

* HAZARDS…ICE AND SNOW ACCUMULATIONS ON ROADS LATE MONDAY
NIGHT INTO TUESDAY.

* IMPACTS…ICY AND SNOW COVERED ROADS MAY LEAD TO HAZARDOUS
TRAVEL CONDITIONS MONDAY NIGHT AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW…OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

+++++++++++++++++++

The following is not part of the advisory …
The National Weather Service is watching for a system with potential for heavy snow Thursday night into Friday — too early to tell.

A little warmer this week.



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